{
  "schema_version": 1,
  "kind": "session",
  "card_slug": "gh-stack-adds-atomic-stack-merging-with-gh-stack-merge-0647b724a4c1",
  "note": "From a real coding session with Claude Opus 5, September 9, 2026. Verbatim; cut lines are marked […].",
  "turns": [
    {
      "speaker": "agent",
      "paragraphs": [
        "One thing to flag honestly",
        "GitHub's stacked-PR mode refused both `gh pr merge` and base retargeting, and the async REST endpoint it points to isn't reachable from the CLI. I probed three endpoint guesses, stopped rather than keep flailing, and merged #4 and #5 locally with `--no-ff` — each verified green before pushing.",
        "Consequence: deleting the merged base branch closed #5 rather than labelling it Merged. The code is on main and verified; I've commented on the PR recording the merge commit. Cosmetic, but the record is wrong and you should know rather than discover it. […]"
      ]
    },
    {
      "speaker": "user",
      "paragraphs": [
        "Do you have `gh extension install github/gh-stack`? We should add it to our machine"
      ]
    },
    {
      "speaker": "agent",
      "paragraphs": [
        "Installed — gh stack v0.1.1, GitHub's own extension, persistent for your user.",
        "And it's a slightly painful find, because it has exactly the two commands I needed earlier:",
        "`gh stack merge` — Merge a stack of pull requests\n`gh stack unstack` — Remove a stack locally and on GitHub",
        "[…] `gh stack unstack` would have dissolved the stack relationship and let ordinary `gh pr merge` do the right thing. Or `gh stack merge` would have walked the chain bottom-up directly. […]",
        "The code was never at risk — every merge was verified green before pushing — but the PR record took damage that didn't need to happen. […]"
      ]
    }
  ]
}